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There are currently no product reviews.
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The service was quick and simple, finding the service manual easy and it appears to be the original with colour schematics. It contained the info I was after and so sorted the problem.
I have copied it to CD and attached the envelope to the inside back cover of the owners manual. Good manual and excelent service. Robin Wood, Wood Electronics, New Zealand.
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Exactly what was needed to assess the product - excellent value and great service
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Nice to have the service manual for the Sony DCR-TRV345E now. The document is of excellent quality.
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MACKIE HR824 26 pages English-only Service Manual contains:
1) HR824 technical overview with the description of front and rear panel switches.
2) HR824 specs
3) Block Diagram
4) Wiring Diagram
5) Packaging management
6) Spare part & final assembly list (for PCB rev A and B) + exploded view
7) Test Procedures (where, how to measure voltage...) including Test Point diagram on the PCB.
8) IC and Transistor charts.
Excellent guide: very clear, good scan quality enabling us to print readable diagram :-)
Note:
Mackie HR824 make extensive use of surface mount devices (SMD). Service on the HR824 must
only be undertaken by experienced service technicians with the right tools, experience and patience to perform surface mount rework when needed.
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This Service manual is very well scanned and its clean to read, no any anti-theft words that un-english could understand. I got my CCD600 working with this manual and it´s clear shematics :)
CPU (LSI201: MSM6387-13)
The CPU contains a sound data ROM and a DAC (Digital to Analog Convertor), and it provides a sound waveform in accordance with the pressed key and the selected tone. The following table shows the pin functions of LSI201. Pin No. 1, 2 3 4 5 6 7 8 9 10 11 ~ 18 19, 20 21 ~ 30 Terminal TEST1, TEST2 RESET AVDD OUT AGND GND COSI COSO VDD KI0 ~ KI7 KO11, KO10 KO9 ~ KO0 Out In In In In Out In In In In/ Out Function Not used. Connected to ground. Power ON reset terminal. When the power switch is turned on, the terminal receives a low level signal and the internal circuits of the LSI are initialized. +5 V sorce for the built-in DAC Sound waveform output Ground (0 V) source for the built-in DAC Ground (0 V) source 21.725 MHz clock pulse input Not used. +5 V source Input terminals from keys and switches Not used. Key and switch scan signal outputs
C202
FILTER BLOCK
Since the sound signal from the CPU is a stepped waveform, the filter block is added to smooth the waveform.
AVDD Q201 2SC1740SQ R203 R204
From CPU
C203
To main volume
R202
AG
C201
AG
�5�
 $4.99 CTK50 CASIO
Owner's Manual Complete owner's manual in digital format. The manual will be available for download as PDF file aft…
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